Dockerfile for grails behind firewall

FROM onesysadmin/gvm
# [Build]
# cd /path/to/grails/project
# docker build -t you/product .
# [Run]
# docker run -it -v /path/to/grails/project:/app --link pg:db you/project:latest
# docker run -d -v /path/to/grails/project:/app --link pg:db you/project:latest run-app

ENV PROXY_HOST 1.2.3.4  # proxy address/hostname
ENV PROXY_PORT 18080    # proxy port
ENV http_proxy http://${PROXY_HOST}:${PROXY_PORT}/
ENV https_proxy http://${PROXY_HOST}:${PROXY_PORT}/

RUN mkdir /app
WORKDIR /app

# Set default Grails Java Runtime env
ENV JAVA_OPTS -Xms256m -Xmx512m -XX:MaxPermSize=256m -Djetty.serverHost=0.0.0.0

ENTRYPOINT [ "/usr/local/bin/gvm-exec.sh", "grails", "-Dgrails.work.dir=/app/.grails" ]
CMD ["interactive"]
EXPOSE 8080

# install newest version of the 2.4.x branch
RUN gvm-wrapper.sh install grails 2.4.4 && \
    gvm-wrapper.sh flush archives && \
    cd /app && \
    gvm-exec.sh grails -Dgrails.work.dir=/app/.grails add-proxy client --host="${PROXY_HOST}" --port="${PROXY_PORT}" && \
    gvm-exec.sh grails -Dgrails.work.dir=/app/.grails set-proxy client
RUN mv /root/.grails/ProxySettings.groovy /root/.grails/ProxySettings.groovy.bak && \
    sed -e "s/'http.nonProxyHosts':''/'http.nonProxyHosts':'localhost'/" /root/.grails/ProxySettings.groovy.bak > /root/.grails/ProxySettings.groovy